<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="./js/vue.js"></script>
    <script src="./js/mycom.js"></script>
</head>
<body>
    <div id="app">

        <mycom>

        </mycom>

    </div>

    
</body>
<template id="mycom">
    <div>
        {{num}}
        <button @click="add">增加</button>

    </div>
</template>
<script>
    new Vue({
        el:"#app",
        components:{
            mycom
               


            
        }
    })
</script>
</html>